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A processing technology, aluminum substrate technology, applied in the direction of electrical components, printed circuit manufacturing, printed circuit, etc., can solve the problem of poor thermal conductivity, withstand voltage value and thermal resistance value of aluminum substrate, shortened service life, poor processing technology Mature and other issues, to achieve the effect of good pressure resistance and thermal resistance, extended service life, and mature technology
Inactive Publication Date: 2014-10-15
张龙
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[0002] With the development and progress of electronic technology, it has become an inevitable trend for electronic products to be light, thin, small, personalized, high-reliable, and multi-functional. Aluminum substrates were born following this trend, but the existing processing technology of aluminum substrates It is relatively simple and immature, resulting in poor thermal conductivity, withstand voltage and thermal resistance of the produced aluminum substrate, and the service life will be shortened accordingly.
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Embodiment 1
[0052] The invention discloses a process for processing an aluminum substrate, the specific steps of which are as follows:
[0053] Step 1: Cutting: Cut the large-size raw material plate into aluminum with a specific size of 333*505 mm by using a cutting machine;
[0054] Step 2: Degreasing the surface: Soak the aluminum material with an aqueous solution of 25% NaOH for 20 minutes at a temperature of 25°C;
[0055] Step 3: Anodizing: Put the degreased aluminum material in a 25% H2SO4 aqueous solution, and perform anodizing for 25 minutes at a temperature of 24°C and a current density of 5A / d㎡;
[0056]Step 4: Cleaning and drying: wash the anodized aluminum material with clean water, and then dry it on a dryer at a drying temperature of 90°C;
[0057] Step 5: Apply coupling agent: Coat one side of the aluminum with epoxy-based coupling agent KH-550;
[0058] Step 6: Drying: put the aluminum coated with the coupling agent in an oven and bake for 15 minutes at a temperature of ...
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Abstract
The invention discloses a processing technology of an aluminum substrate. The processing technology comprises the following concrete steps of cutting, removing surface oil, anodizing, cleaning, drying, applying a coupling agent, drying, laminating, trimming, performing primary drilling, printing a wet film, performing primary preliminary drying, performing primary exposure, performing primary development, etching, removing the film, printing solder mask white oil, performing secondary preliminary drying, performing secondary exposure, performing second development, performing secondary drilling, cleaning the substrate subjected to the secondary drilling with an acid cleaning solution in an ultrasonic cleaner for 40-50s, taking out, washing, cooling, drying with 81-85 DEG C hot air, pasting a medium-viscosity protective film on a circuit surface with a hot pressing roller, performing numerically-controlled drilling and milling for shaping, inspecting and shipping. The processing technology has the advantages that the technology is mature, and the service life of a finished product is long.
Description
technical field [0001] The invention relates to an aluminum substrate processing technology, which is applied in the field of processing and manufacturing of aluminum substrates. Background technique [0002] With the development and progress of electronic technology, it has become an inevitable trend for electronic products to be light, thin, small, personalized, high-reliable, and multi-functional. Aluminum substrates were born following this trend, but the existing processing technology of aluminum substrates It is relatively simple and immature, which causes the thermal conductivity, withstand voltage value and thermal resistance value of the produced aluminum substrate to be not very good, and the service life will be shortened accordingly. Contents of the invention [0003] In order to solve the defects of the prior art solutions, the invention discloses an aluminum substrate processing technology with long product life and mature technology. [0004] The inv...
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